Infrasound and its relevance for audible sound

次声及其与可听声音的相关性

• 批准号: 381242260
• 负责人: Dr.-Ing. Thomas Fedtke
• 金额: --
• 依托单位: Physikalisch-Technische Bundesanstalt (PTB)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/381242260?language=en
• 关键词: Infrasound; its; relevance; audible; sound

An increasing number of individuals are being exposed to infrasound. It is well known that certain individuals may be particularly sensitive and that their quality of life is considerably degraded by a range of symptoms (insomnia, concentration disorders, restlessness, migraine). It is, however, substantially unexplained, how infrasound is processed by human beings. The project aims at investigating the perception mechanisms for infrasound and low-frequency sound. This will provide physicians and psychologists with essential information for an improved examination of the effects such sound has on humans.One hypothesis, how infrasound can be "heard", is that the auditory system generates audio-frequency distortion products. An alternative infrasound perception hypothesis is that infrasound becomes audible because it modulates audio sound. These two hypotheses shall be critically validated by means of listening tests. The results of the latter as well as those of the technical ear canal sound measurements shall provide the basis for developing models of the infrasound perception processes within this project.The results of this project are believed to lay, in the long run, the ground for future safety regulations and for an adequate characterization of infrasound emission. The results will be important for both protection of health (protection against hazardous infrasound immission) and for economic development (infrasound emission, e.g. manufacturer and operators of wind turbines).

越来越多的人暴露在次声中。众所周知，某些人可能特别敏感，他们的生活质量因一系列症状(失眠、注意力障碍、躁动、偏头痛)而大大下降。然而，人类是如何处理次声的，这一点基本上还没有得到解释。该项目旨在研究次声和低频声音的感知机制。这将为医生和心理学家提供基本信息，以便更好地研究次声对人类的影响。其中一个假设是，次声如何被“听到”，即听觉系统产生音频失真产物。另一种次声感知假说是，次声是可以听到的，因为它可以调节音频。这两个假设应通过听力测试进行批判性验证。后者的结果以及技术耳道声测量的结果将为在该项目中开发次声感知过程的模型提供基础。从长远来看，该项目的结果被认为为未来的安全法规和次声发射的适当特征奠定了基础。这一结果将对保护健康(防止危险的次声传播)和经济发展(次声发射，例如风力涡轮机的制造商和运营商)都是重要的。